In addition to the above factors, there are still many factors affecting the vertical mill output. For example, the mixture structure leads to material segregation, air volume control, hot air temperature control, batching control, etc., which will affect the vertical mill output. In actual production, it should be analyzed according to the specific conditions of the factory.

After the material is fed into the grinding disc, a certain layer is formed. When the thickness of the layer reaches a certain thickness, the grinding roller starts to grind. If the material layer is too thin, the grinding stress is too concentrated, and the grinding ability is reduced, which will inevitably lead to impact of the grinding roller liner and the grinding disc liner.

The grinding machine has large vibration, easy to jump, and will damage the liner, the tension rod, etc. Can not be controlled by thin layer. If the thickness of the material layer is too thick, the grinding force will be converted into lateral stress, and the sliding shear will be formed between the materials. The slump of the material bed will increase, the milling efficiency will decrease, and the vibration will be large.

The material will not be timely. Grinding and extruding the grinding disc, falling to the spout ring, increasing the circulation amount, the pressure difference is large, the material can not be ground away in time, forming a vicious circle, which can only reduce the production operation and affect the mill output.

The thickness of the layer is generally controlled to be about 50-80 mm. The principle is that the material fed into the mill should be ground in time and flow to the next process in time. The pressure difference of the system should not be too high to ensure that the vibration is within a reasonable range.